/Engine/Source/Runtime/GeometryCore/Public/Spatial/GeometrySet3.h
Since Points and Curves have no area to hit, hit-tests are done via nearest-point-on-ray.
class FGeometrySet3
TMap< int, int ...
CurveIDToIndex
TArray<FCurve...
Curves
TMap< int, int ...
PointIDToIndex
TArray<FPoint...
Points